Peanut oil is a staple in many households around the world, known for its rich flavor and health benefits. Today, we'll take you through the detailed process of producing peanut oil using advanced screw - type peanut oil machines, revealing the secrets behind their high - efficiency production.
The journey of peanut oil production begins with shelling the peanuts. Modern shelling machines can efficiently separate the peanuts from their shells, ensuring that only clean, shell - free peanuts enter the next stage of production. This step significantly reduces impurities and improves the overall quality of the final product.
There are two main methods of extracting peanut oil: hot - pressing and cold - pressing. Hot - pressing involves heating the peanuts to a temperature of around 120 - 130°C before extraction. This method can achieve a higher oil yield, usually around 45% - 50%. Cold - pressing, on the other hand, is done at a lower temperature, typically below 60°C. Although the oil yield is relatively lower, around 35% - 40%, cold - pressed peanut oil retains more nutrients and has a lighter flavor.
After shelling, the peanuts need to be thoroughly cleaned to remove dirt, dust, and other foreign objects. This is usually done through a combination of screening and washing processes. Pretreatment also includes adjusting the moisture content of the peanuts. The ideal moisture content for peanut oil extraction is around 8% - 10%. Proper moisture control is crucial for efficient oil extraction and can prevent issues such as low oil yield and poor oil quality.
Cooking or roasting the peanuts is a critical step in the hot - pressing process. The peanuts are heated to a specific temperature, usually between 120 - 130°C, to break down the cell walls and release the oil more easily. This step also enhances the flavor of the peanut oil. The cooking time and temperature need to be precisely controlled to ensure optimal results.
Crushing the peanuts into smaller particles increases the surface area for oil extraction, thus improving the oil yield. The size of the crushed peanuts should be carefully controlled. Generally, a particle size of around 2 - 3 mm is considered ideal for efficient oil extraction.
During the oil extraction process, several parameters need to be strictly controlled. The pressure applied by the screw - type peanut oil machine is usually around 30 - 50 MPa. The temperature during extraction also plays a crucial role. For hot - pressing, the extraction temperature is maintained at around 120 - 130°C, while for cold - pressing, it is kept below 60°C. The moisture content of the peanuts should be around 8% - 10% to ensure optimal oil extraction efficiency.
After oil extraction, the remaining oil cakes still contain a certain amount of protein and other nutrients. These oil cakes can be used as animal feed or as raw materials for fertilizer production. This not only reduces waste but also adds additional value to the production process.
The extracted crude peanut oil needs to go through a refining process to remove impurities, odors, and free fatty acids. The refining process includes degumming, deacidification, bleaching, and deodorization. After refining, the peanut oil is filled into containers for storage and distribution.
Throughout the entire production process, strict quality control measures are in place to ensure that every bottle of peanut oil meets the highest standards. The production process is not only efficient but also environmentally friendly, as demonstrated by many enterprises in the industry. We take pride in our rigorous production process, and we invite you to experience the difference in our peanut oil. You can trust our products and enjoy the delicious and healthy peanut oil on your dining table.
Ready to bring high - quality peanut oil to your market? Contact us today to learn more about our products and start your procurement journey!